A young friend was asking me about the film "2001: A Space Odyssey". When I was a kid, back in 1968, my dad took me to see it. He was thoroughly mystified. I totally got it. In fact, that experience rescued me from my teenage depression. I totally related to HAL, the computer, and knew that the unstated message was that the Humans had become machines, mistreated their electronic creation, and that's why there is hell to pay for being careless with other minds… even the ones that we would someday build with our own hands.
I was also encouraged to look to a future where Humanity might actually stumble upon an intelligence other than our own or those of our fellow species on the Home World. That may still happen in my lifetime. We'll see. I doubt that they'd come here to have us for supper, so I'm optimistic. They might also have something or another to teach us. I'm not a UFO crazy, but I do entertain the possibility that they've already been here. We might be their experiment, and our lovely piece of lint in the almost infinite vastness is a cozy petri dish that may, someday, produce something of interest upon their return.